4-Amino-1-[(2S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1H)-one ; CAS # 136846-20-3 ;

trans-Lamivudine (USP) ; 4-Amino-1-[(2R,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl] pyrimidin-2(1H)-one ; CAS # 139757-68-9 ;

4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl] pyrimidin-2(1H)-one ; CAS # 134678-17-4 ;

Lamivudine Carboxylic Impurity ; (2R,5S)-5-(4-Amino-2-oxopyrimidin-1(2H)-yl)-1,3-oxathiolane-2-carboxylic acid ; CAS # 173829-09-9 ;

(2RS,5RS)-Lamivudine ; 4-Amino-1-[(2RS,5RS)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1H)-one ;

Salicylic Acid ; 2-Hydroxybenzenecarboxylic acid ; CAS # 69-72-7 ;

Lamivudine Enantiomer ; 4-Amino-1-[(2S,5R)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidin-2(1H)-one ; CAS # 134680-32-3 ;

Cytosine ; 4-Aminopyrimidin-2(1H)-one ; CAS # 71-30-7 ;

Uracil ; Pyrimidine-2,4(1H,3H)-dione ; CAS # 66-22-8 ;

Lamivudine (3S)-Sulfoxide ; 4-Amino-1-[(2R,3S,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl] pyrimidin-2(1H)-one S-oxide ; CAS # 160552-55-6 ;

Lamivudine (3R)-Sulfoxide ; 4-Amino-1-[(2R,3R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl] pyrimidin-2(1H)-one S-oxide ; CAS # 160552-54-5 ;

Lamivudine Dioxolan Impurity ; 4-Amino-1-[(2S,4S)-2-(hydroxymethyl)-1,3-dioxolan-4-yl] pyrimidin-2(1H)-one ;

Lamivudine Dione Impurity ; 1-[(2R,5S)-2-(Hydroxymethyl)-1,3-oxathiolan-5-yl]pyrimidine-2,4(1H,3H)-dione ; CAS # 145986-07-8 ;

4-Amino-1-[(2R,5S)-2-(hydroxymethyl)-1,3-oxathiolan-5-yl] pyrimidin-2(1H)-one S-oxide ; CAS # 1235712-40-9 ;

(2RS,5R)-5-(Cytosine-1-yl)-1,3-oxathiolane-2-carboxylic acid ;